Home / 281,372.22-388,330.65-160,485.80

Finding the Fourth Proportional to 281,372.22, 388,330.65 and 160,485.80

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Solution

The fourth proportional to 281,372.22, 388,330.65 and 160,485.80 is: 221,491.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,372.22 : 388,330.65 = 160,485.80 : x
  2. Step 2: Convert to fraction form
    281,372.22/388,330.65 = 160,485.80/x
  3. Step 3: Cross multiply
    281,372.22x = 388,330.65 × 160,485.80
  4. Step 4: Simplify right side
    281,372.22x = 62,321,555,029.77
  5. Step 5: Solve for x
    x = 62,321,555,029.77/281,372.22
  6. Step 6: Final answer
    x = 221,491.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.